PSYC 100 Lecture Notes - Lecture 4: Auditory Cortex, Motor Cortex, Sensory Cortex

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: Sherri Atwood

Document Summary

Mri, ct scan, and fmri focus on brain structure. Pet scan and fmri focus on function of the brain. Eeg((electroencephalogram)) records electrical waves sweeping across the brain"s surface useful for studying seizures and sleep. Pet ((position emission tomography)) scan shows which parts of the brain are active while the brain performs a given task does this by tracing where a radioactive form of glucose goes. Mri ((magnetic resonance imaging)) makes images from signals produced by brain tissue after magnets align the spin of atoms fmri reveals brain activity and function also shows changes in the level of oxygen blood flow in the brain. Brain hierarchy: recently developed structures sit on the top of structures of the past core: breathing and heart rate newer systems: complex functions like thinking, reasoning, emotions. Areas of the brain and their functions: hindbrain: brainstem and cerebellum midbrain: the limbic system forebrain: cerebral cortex ((outer covering)) Outer covering of two hemispheres of the brain.